NOTES: Rows are not shown if all cells for that
particular row have no values. For example, specific state by commodity rows
are not shown in this table because there are no data for those rows.
Value-of-shipment estimates have not been adjusted for price changes.
Estimated measures of sampling variability for each estimate known as
coefficients of variation (CV) are also provided in these tables. More
information on sampling error, confidentiality protection, nonsampling error,
sample design, and definitions may be found at http://www.bts.gov/publications/commodity_flow_survey/.

SOURCE: U.S. Department of Transportation, Research
and Innovative Technology Administration, Bureau of Transportation Statistics
and U.S. Department of Commerce, U.S. Census Bureau, 2007 Economic Census:
Transportation Commodity Flow Survey, December 2009.